In the DS9 episode “The Wire”, Garak mentions that the lights on the station are always too bright. Knowing this (and assuming that this is a facet of Cardassian physiology as opposed to a withdrawal syndrome which would make sense since Cardassia Prime always seems a bit dimmer than other planets) and considering that DS9 has slightly dimmer than normal lighting, then the planet that the crew crashes onto in the episode “Rocks and Shoals” must’ve been awful for Garak. I mean, if I get headaches from being outside too long without sunnies on, imagine what it’d be like for a member of a species unequipped to handle bright lights for extended periods of time.
On a funnier note, I’d think going from bright outside light to dim cave light would be a slower adjustment for a Cardassian, so I imagine Garak just walking into the temporary cave base and just running into everything for a solid five minutes.